org.xml.sax.SAXParseException?

Hi all I have the following files and when i compiled them and when i run them i got that exception and i know forsure I'm not either entering the right data at the command line or i have something not right with my xml file.please take a look at them. thanks. //======================== // Copyright 2001 by Jim Weirich (jweirich@one.net). All rights reserved. // Permission is granted for use, modification and distribution as // long as the above copyright notice is included. import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; // =================================================================== // Print the text of all TEXT nodes in the document tree. public class PrintText extends DomDemoFramework { public void traverseTree (Node node) { if (node.getNodeType() == Node.TEXT_NODE) { System.out.println(node.getNodeValue()); } else { NodeList children = node.getChildNodes(); for (int i=0; i<children.getLength(); ++i) { traverseTree (children.item(i)); } } }